Within Tolerance
A snagging kit: a clipboard checklist, a roll of tape, a £1 coin and a socket tester.

The free new-build snagging checklist

The checklistThe detail

Snagging means listing everything in your new home that isn't finished properly, so the builder fixes it. This checklist covers the whole house: outside first, then every room, then the kitchen, bathrooms, stairs, heating and electrics. Use it at your pre-completion inspection or in your first weeks. Photograph anything that fails and report it in writing.

On the day

39 checks

Bring: a charged phone for photos, a plug-in socket tester and a £1 coin. Judge walls and paint in daylight from 2m, with no light shone on them.

Outside

Full guide

Every room

Full guide

Kitchen

Full guide

Bathrooms

Full guide

Stairs, loft and garage

Full guide

Heating and electrics

Full guide

If something fails, add it to your snag list and report it to the builder. How to report a snag

Next: Every room

The detail, for reading before you go

What is snagging?

A snag is a minor fault in a new home that falls short of the expected quality or finish. It is usually something damaged, broken, badly fitted or unfinished. Snags can be found at the pre-completion inspection or after you move in.

The New Homes Quality Board separates snags from defects. A snag is cosmetic, like a scratch on paintwork. A defect affects how something works, such as the plumbing, electrics or heating, and can take longer to fix. Both go on your list and both are the builder's to fix in the first two years.

When should you snag a new build?

Twice, if you can. First at the pre-completion inspection, before you complete, while the builder still has the keys. The pre-completion inspection page covers that day.

Then again in your first weeks. Some problems only show once you have lived in each room for a while. Do the scratches and chips first. NHBC won't cover cosmetic damage reported more than seven days after completion.

A trick we used we photographed each room from the doorway on the first day, before any furniture came in. It settled any question about whether a mark was there before we moved in.

What do I need to snag a house?

Not much. A phone for photos, a plug-in socket tester and a £1 coin will do most of it. Snaggit, which makes a snagging app, puts a socket tester at around £10 from a hardware shop and adds a torch, a small spirit level and a tape measure.

Use the tools to measure something you can already see, not to hunt for problems. The official checklist allows a spirit level or tape for that, but judges walls and paint by eye from 2m.

What is the NHBC snagging checklist?

NHBC publishes a two-page "New home checklist". It suggests checking every part of the home before and just after you move in, because NHBC's own inspectors focus on the most important parts of the build. It doesn't form part of the NHBC Standards or the Buildmark policy.

The checklist builders on the New Homes Quality Code have to use is the NHQB's pre-completion inspection checklist. It is longer and sets how to look: walls from 2m, cupboards from half a metre, brickwork from 10m. LABC Warranty publishes a sample checklist too. The checklist on this page follows the NHQB's, in a shorter form for a phone.

How long do you have to report snags?

Up to two years from completion for most snags, but scratches and chips need reporting within days. NHBC's warranty excludes cosmetic damage reported more than seven days after completion. The NHQB says the time allowed for scratches varies by builder but is usually only a few days.

For everything else, under NHBC's Buildmark the builder must put right anything you report in the first two years that doesn't meet NHBC's requirements. Under the Quality Code, it should settle most within 30 days. The two-year warranty page covers how to report, and how long snagging takes covers what to expect.

How much does a snagging survey cost?

Typically a few hundred pounds. The HomeOwners Alliance says a snagging survey starts at £320. Petty Son & Prestwich, an East London estate agent, puts a typical survey at around £500, varying by firm and region.

You don't have to use a professional. This checklist and the room pages are written so you can do it yourself. A professional knows the tolerances by heart and may find more, so it is a judgement call.

What do I do with the list?

Send it to the builder's after-sales team, in writing. A builder on the Quality Code must tell you how to report problems and who to contact. Report each snag in writing, with a photo where you can, and keep a record of everything you send. The two-year warranty page lists what to put in each report.

Where to find the detail

Each part of the checklist has its own page, with the reasons behind each check and the official measurements:

From our own build

Our first snagging list had 186 items.

Most were small, and 80 of them were for the painter.

Where this comes from

Every fact on this page comes from the documents below. Anything marked ‘a trick we used’ is our own.

Official and industry guidance

  1. New Homes Quality Board, Pre-Completion Inspection Checklist: House, Version 2, March 2026, p.3, p.4, p.5, p.6, p.7-8, p.7, p.7-9, p.8, p.9, p.10, p.14, p.15, p.16, p.17, p.18
  2. NHBC, NHBC Standards 2024, Chapter 9.1: A consistent approach to finishes (copy published by New Build Inspections), 2024, 9.1.3
  3. NHBC, New home checklist, January 2017, p.1, p.2
  4. New Homes Quality Board, New Homes Quality Code, Version 2, March 2026, 2.8, 3.1, 3.3, Glossary, Snag
  5. New Homes Quality Board, A guide to settling into your new home, June 2026, p.4
  6. New Homes Quality Board, A homeowner guide to snagging, May 2026, Common snagging issues, What can you do to avoid issues?
  7. NHBC, Buildmark policy booklet (homes registered from 1 April 2025), April 2025, 2.1.1, 2.1.2
  8. LABC Warranty, Snagging checklist for new build homes, undated (PDF metadata January 2016), retrieved 9 October 2026

Snagging firms and buyer guides

  1. Snaggit, How to do a snagging inspection: step-by-step guide, 16 April 2026
  2. HomeOwners Alliance, Snagging list for new builds 2026, updated 8 October 2026, How much does a snagging survey cost?
  3. Petty Son & Prestwich, Snagging List: The Ultimate Checklist For New Build Homes, undated, retrieved 9 October 2026, How much does a snagging survey cost?

Last checked 15 October 2026

For general education only. It isn't legal or surveying advice. Always check your own warranty documents and Code version, and speak to your housebuilder, your warranty provider or a qualified snagging inspector before relying on it. Read the disclaimer.